package com.wanmait.shoppingsys.util;

import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Random;

public class Rng {
	

		 public static String getRandomFileName() {

			  SimpleDateFormat simpleDateFormat;
	
			  simpleDateFormat = new SimpleDateFormat("yyyyMMdd");
	
			  Date date = new Date();
	
			  String str = simpleDateFormat.format(date);
	
			  Random random = new Random();
	
			  int rannum = (int) (random.nextDouble() * (99999 - 10000 + 1)) + 10000;// 获取5位随机数
	
			  return rannum + str;// 当前时间  }

		 }
	
		
	
}


